long story short, im creating a placement system and i need to detect if the hitbox is inside the allowed building area. so i have added the build areas to a blacklist table, so the ray that gets the mouse position wont detect it, but its not working. im not really good at explaining things so here are some pics
the big green part is the build area which is supposed to be on the ignore list and the red part is the part i am placing
if you want i can post the script
edit: so here is the script.
local module = {}
local RR3 = require(game.ReplicatedStorage.RotatedRegion3)
module.place = function(plr,item)
local canPlace = false
local itemTransparent = item:Clone()
local function refreshcolor()
if canPlace == true then
for i,v in pairs(itemTransparent.Parts:GetChildren()) do
if v.Name == "Hitbox" then
v.Transparency = 0.5
v.Color = Color3.fromRGB(0, 214, 0)
else
v.Transparency = 0.5
end
end
else
for i,v in pairs(itemTransparent.Parts:GetChildren()) do
if v.Name == "Hitbox" then
v.Transparency = 0.5
v.Color = Color3.fromRGB(200, 0, 0)
else
v.Transparency = 0.5
end
end
end
end
refreshcolor()
local blacklist = {}
local plot
for i,v in pairs(game.Workspace.Plots:GetChildren()) do
if v.Owner.Value == plr.Name then
plot = v
for i,b in pairs(v.BaseParts:GetChildren()) do
b.Grid.Transparency = 0
end
end
end
for i,v in pairs(itemTransparent.Parts:GetChildren()) do
table.insert(blacklist,v)
end
for i,v in pairs(plot.BuildAreas:GetChildren()) do
table.insert(blacklist,v)
end
local mouse = plr:GetMouse()
local hitbox = itemTransparent.Parts.PrimaryPart
local function snapToGrid(vector3,middle,folder,posx,posz)
local x = math.floor(vector3.X+0.5)
local y = math.floor(vector3.Y+0.5)
local z = math.floor(vector3.Z+0.5)
if itemTransparent.Parts.PrimaryPart.Size.X % 2 ~= 0 then
if posx > x then
x += 0.5
else
x -= 0.5
end
end
if itemTransparent.Parts.PrimaryPart.Size.Z % 2 ~= 0 then
if posz > z then
z += 0.5
else
z -= 0.5
end
end
folder.Parts:MoveTo(middle+Vector3.new(-x,y + folder.Parts.PrimaryPart.Size.Y/2,-z))
local rogi = {
{1, 1, -1}, --v1 - top front right
{1, -1, -1}, --v2 - bottom front right
{-1, -1, -1},--v3 - bottom front left
{-1, 1, -1}, --v4 - top front left
{1, 1, 1}, --v5 - top back right
{1, -1, 1}, --v6 - bottom back right
{-1, -1, 1},--v7 - bottom back left
{-1, 1, 1} --v8 - top back left
}
local buildareas = plot.BuildAreas:GetChildren()
local boolTable = {}
for i,v in pairs(rogi) do
local CornerPos = (hitbox.CFrame * CFrame.new(hitbox.Size.X/2 * v[1], hitbox.Size.Y/2 * v[2], hitbox.Size.Z/2 * v[3]))
local region = RR3.new(CornerPos,Vector3.new(0.05,0.05,0.05))
local partsfound = region:FindPartsInRegion3WithWhiteList(buildareas)
if #partsfound == 0 then
table.insert(boolTable,false)
else
table.insert(boolTable,true)
end
end
if not table.find(boolTable,false) then
canPlace = true
else
canPlace = false
end
refreshcolor()
end
local RS = game:GetService("RunService")
local UIS = game:GetService("UserInputService")
itemTransparent.Parent = workspace.Placing
RS.RenderStepped:connect(function()
local ray = Ray.new(mouse.UnitRay.Origin,mouse.UnitRay.Direction*1000)
local hit, mousepos = game.Workspace:FindPartOnRayWithIgnoreList(ray, blacklist)
local pos = plot.BaseParts.BasePart1.Position - mousepos
if hit then
snapToGrid(pos,plot.BaseParts.BasePart1.Position,itemTransparent,mousepos.X,mousepos.Z)
end
wait()
end)
UIS.Changed:Connect(function(input)
if input.UserInputType == Enum.UserInputType.MouseButton1 then
if canPlace == true then
end
end
end)
end
return module
this is the part of the script where it gets the position
RS.RenderStepped:connect(function()
local ray = Ray.new(mouse.UnitRay.Origin,mouse.UnitRay.Direction*1000)
local hit, mousepos = game.Workspace:FindPartOnRayWithIgnoreList(ray, blacklist)
local pos = plot.BaseParts.BasePart1.Position - mousepos
if hit then
snapToGrid(pos,plot.BaseParts.BasePart1.Position,itemTransparent,mousepos.X,mousepos.Z)
end
wait()
end)